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aac: Reset PS parameters on header decode failure. 

If the next header frame codes zero envelopes the previous frame's
values will be used. Consequently the invalid values must be cleared.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
This commit is contained in:
Alex Converse 2012-03-21 10:11:02 -07:00
parent 7beec7e29d
commit a237b38021
1 changed files with 4 additions and 0 deletions
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4
libavcodec/aacps.c
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@ -275,6 +275,10 @@ int ff_ps_read_data(AVCodecContext *avctx, GetBitContext *gb_host, PSContext *ps
err:
ps->start = 0;
skip_bits_long(gb_host, bits_left);
memset(ps->iid_par, 0, sizeof(ps->iid_par));
memset(ps->icc_par, 0, sizeof(ps->icc_par));
memset(ps->ipd_par, 0, sizeof(ps->ipd_par));
memset(ps->opd_par, 0, sizeof(ps->opd_par));
return bits_left;
}